2-Ethyl-3(5 or 6)-dimethylpyrazine, mixture of isomers
2-乙基-3,5(6)-二甲基吡嗪
Also known as: 2-Ethyl-3,5-dimethylpyrazine, 2-Ethyl-3,5(6)-dimethylpyrazine, 2,6-Dimethyl-3-ethylpyrazine, 3-Ethyl-2,6-dimethylpyrazine, 2-Ethyl-3(5 or 6)-dimethylpyrazine, Dimethylethylpyrazine, FEMA 3149, EINECS 248-182-2, MFCD00047392
2-Ethyl-3(5 or 6)-dimethylpyrazine, mixture of isomers (CAS 27043-05-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C8H12N2 and a molecular weight of 136.194 g/mol. It is also known as 2-Ethyl-3,5-dimethylpyrazine, 2-Ethyl-3,5(6)-dimethylpyrazine and 2,6-Dimethyl-3-ethylpyrazine. Key properties include a boiling point of 188.8±35.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 69.4±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 27043-05-6
- Jingsj CID
- J-38720-0
- Molecular Formula
- C8H12N2
- Chinese Name
- 2-乙基-3,5(6)-二甲基吡嗪
- Molecular Weight
- 136.194 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 188.8±35.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 69.4±0.0 °C |
| Exact Mass | 136.100052 |
| PSA | 25.78000 |
| LogP | 1.63 |
| Vapor Pressure | 0.8±0.3 mmHg at 25°C |
| Refractive Index | 1.501 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2912410000 |
|---|---|
| Summary | HS: 2912410000. 4-hydroxy-3-methoxybenzaldehyde. VAT:17.0%. tax rebate rate:13.0%. supervision conditions:None. MFN tarrif:5.5%. general tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 2-Ethyl-3(5 or 6)-dimethylpyrazine, mixture of isomers?
The CAS number of 2-Ethyl-3(5 or 6)-dimethylpyrazine, mixture of isomers is 27043-05-6.
What are the molecular formula and molecular weight of 2-Ethyl-3(5 or 6)-dimethylpyrazine, mixture of isomers?
2-Ethyl-3(5 or 6)-dimethylpyrazine, mixture of isomers has molecular formula C8H12N2 and molecular weight 136.194 g/mol.
Is 2-Ethyl-3(5 or 6)-dimethylpyrazine, mixture of isomers hazardous?
2-Ethyl-3(5 or 6)-dimethylpyrazine, mixture of isomers has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Ethyl-3(5 or 6)-dimethylpyrazine, mixture of isomers (CAS 27043-05-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38720-0 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.